• Aim: What are the special properties of the special right triangles?

  • To begin, we will need to review the special right triangles: 45-45-90 and 30-60-90. You will watch two videos to refresh your memory on the special relationships.

  • Be sure to take notes so you will have something to refer to.

  • 30-60-90 right triangles video

30-60-90 triangles

Video 2

  • 45-45-90right triangles

45-45-90 video
Video 2


  • Class work
Find the value of the six trig functions for a 30 degree angle, a 60 degree angle, and a 45 degree angle. Be sure all of your anwers are in simplest radical form.

  • Journal entry: Speculate why the special right triangles discussed in today's lesson are important in the real world.